KYW Crystal Secrets
KYW Crystal Secrets
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The gain bandwidth e.g. of Yb:KGW and Yb:KYW is incredibly large in comparison with that of Yb:YAG. This enables for wide wavelength tunability and for Considerably shorter pulse durations from manner-locked lasers. Values properly down below one hundred fs have been realized with passive manner locking.
The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, when compared to its counterpart Yb:KGW, is a extraordinary materials that plays an important function in laser know-how. Its primary functionality is to crank out ultrashort pulses of light, spanning only a few hundred femtoseconds.
time. Crystals of the compound melts congruently at 1007 oC, nonetheless melt crystallization of top quality crystal is extremely hard because of phase changeover at ~920 oC. The top seeded Option system from
The absorption and emission spectra of Yb:KYW Crystals Display screen solid peaks at 980 nm and 1030 nm, respectively, ensuring economical Power conversion and superior efficiency in laser programs.
This paper describes a femtosecond laser regenerative amplifier determined by two Yb:KYW crystals with direct longitudinal pumping by strong linear arrays of semiconductor injection lasers owning fiber output. To stop spectral narrowing through amplification as well as corresponding lengthening of your amplified pulse when it can be compressed, a mix of two Yb:KYW crystals ended up made use of, with the spectral maxima of the amplification shifted relative to each other and with spectral profiling from the amplified radiation.
The monoclinic crystal constructions ends in a normal birefringence, assisting to stay away from thermally induced polarization rotation and depolarization decline.
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Spatial composition from the beam plus the corresponding depth profiles I on the output with the laser.
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Significant-electricity repetitively pulsed ytterbium lasers with supershort pulse width and direct click here diode pumping for technological and biomedical purposes
While ytterbium-doped laser achieve media normally exhibit a little quantum defect, ytterbium-doped tungstates let for specifically little values. For example, a 1030-nm Yb:YAG laser would Generally be pumped around 940 nm, While Yb:KGW or Yb:KYW may be most proficiently pumped all around 981 nm.
This tandem of attributes has significantly-achieving implications, significantly in the construction of compact yet powerfull lasers.
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